package com.atlige.gzmall.order.listener;

import com.alipay.api.AlipayApiException;
import com.alipay.api.internal.util.AlipaySignature;
import com.atlige.gzmall.order.config.AlipayTemplate;
import com.atlige.gzmall.order.service.OrderService;
import com.atlige.gzmall.order.vo.PayAsyncVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import java.io.UnsupportedEncodingException;
import java.util.HashMap;
import java.util.Map;

/**
 * @author: Jeremy lI
 * @description:
 * @date: created in 2021/7/11 23:09
 */
@RestController
public class OrderPayedListener {
    @Autowired
    AlipayTemplate alipayTemplate;
    @Autowired
    OrderService orderService;
    @PostMapping("/payed/notify")
    public String handleAlipayed(PayAsyncVo vo, HttpServletRequest request) throws AlipayApiException, UnsupportedEncodingException {
        // 只要我们收到支付宝收到给我们的异步的通知，告诉我们订单支付成功。返回success，支付宝就再也不通知
//        Map<String, String[]> map = request.getParameterMap();
//        for (String key : map.keySet()) {
//            System.out.println("参数名：" + key + "---> 参数值" + request.getParameter(key));
//        }
//        System.out.println("支付宝通知到位了..." + map);
        // 验签
        Map<String, String> params = new HashMap<>();
        Map<String, String[]> requestParams = request.getParameterMap();
        for (String name : requestParams.keySet()) {
            String[] values = requestParams.get(name);
            String valueStr = "";
            for (int i = 0; i < values.length; i++) {
                valueStr = (i == values.length - 1) ? valueStr + values[i]
                        : valueStr + values[i] + ",";
            }
            //乱码解决，这段代码在出现乱码时使用
            valueStr = new String(valueStr.getBytes("ISO-8859-1"), "utf-8");
            params.put(name, valueStr);
        }

        boolean signVerified = AlipaySignature.rsaCheckV1(params, alipayTemplate.getAlipay_public_key(),
                alipayTemplate.getCharset(), alipayTemplate.getSign_type()); //调用SDK验证签名
        if (signVerified){
            System.out.println("签名验证成功");
            return orderService.handlePayResult(vo);
        }
        System.out.println("签名验证失败");
        return "error";
    }

}
